/Engine/Source/Runtime/MeshDescription/Public/MeshDescription.h
Return adjacent polygons to this polygon
[TArray](API\Runtime\Core\Containers\TArray)< [FPolygonID](API\Runtime\MeshDescription\FPolygonID) > GetPolygonAdjacentPolygons ( const [FPolygonID](API\Runtime\MeshDescription\FPolygonID) PolygonID ) const